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| author | yuangongji <yuangongji@foxmail.com> | 2020-03-16 20:11:06 +0800 |
|---|---|---|
| committer | Azat Khuzhin <azat@libevent.org> | 2020-03-17 21:43:39 +0300 |
| commit | 503ba1d36571e3cb01826d15dc462b7d8b5094de (patch) | |
| tree | be601e5accb1a2723fa6c9a7f3936051699a3b3b /cmake | |
| parent | 61c5c19bfdabd2f16407a3ed615060c9d0502e82 (diff) | |
| download | libevent-503ba1d36571e3cb01826d15dc462b7d8b5094de.tar.gz | |
cmake: fix getaddrinfo checking error
Using `CheckFunctionExists` on Windows to check `getaddrinfo`
will get `not found`, but it actually exists. Using `CheckSymbolExists`
with headers will get correct results. Other functions such as
`getnameinfo`,`inet_ntop`,etc. have the same issue.
Diffstat (limited to 'cmake')
| -rw-r--r-- | cmake/CheckSymbolsExist.cmake | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/cmake/CheckSymbolsExist.cmake b/cmake/CheckSymbolsExist.cmake new file mode 100644 index 00000000..2c3c5dc3 --- /dev/null +++ b/cmake/CheckSymbolsExist.cmake @@ -0,0 +1,20 @@ +# Check if each symbol in the symbol list exists, +# and define PREFIX__HAVE_SYMNAME to 1 if yes. +# + +include(CheckSymbolExists) + +# SYMLIST: list of symbols to check +# HEADERS: header files to be included in check code +# PREFIX: the prefix of definition +macro(CHECK_SYMBOLS_EXIST SYMLIST HEADERS PREFIX) + foreach(SYMNAME ${SYMLIST}) + string(TOUPPER "${SYMNAME}" SYMNAME_UPPER) + if("${PREFIX}" STREQUAL "") + set(HAVE_SYM_DEF "HAVE_${SYMNAME_UPPER}") + else() + set(HAVE_SYM_DEF "${PREFIX}__HAVE_${SYMNAME_UPPER}") + endif() + CHECK_SYMBOL_EXISTS(${SYMNAME} "${HEADERS}" ${HAVE_SYM_DEF}) + endforeach() +endmacro() |